Posted by: Anonymous Coward
on February 10, 2005 05:46 PM
I do not believe you have actually benchmarked this.
For modern processors, going to -O3 from -O2 is normally a performance penalty! The code size / speed tradeoff has a discrepancy where the cache kicks in. Try it!
That is a big tradeoff with Gentoo, not many maintainers actually try the software with different flags to see what's better. So you end up with using O3 and your performance drops. Compare that with Debian who has many very active maintainers doing that job for you. That is why Debian is faster in a stock installation. (According to the only public benchmark on the web.)
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Re:Gentoo unfair advantage
Posted by: Anonymous Coward on February 10, 2005 05:46 PMFor modern processors, going to -O3 from -O2 is normally a performance penalty! The code size / speed tradeoff has a discrepancy where the cache kicks in. Try it!
That is a big tradeoff with Gentoo, not many maintainers actually try the software with different flags to see what's better. So you end up with using O3 and your performance drops. Compare that with Debian who has many very active maintainers doing that job for you. That is why Debian is faster in a stock installation. (According to the only public benchmark on the web.)
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